Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 259: | \[{31^{259}-1\over30}\] | 149 × 3109 × 4219 × 12433 × 31081 × 28565111 × 29075341 × 917087137 × 2934910819 × 152597832677<12> × 257803457371<12> × 386626708057<12> × 52812493022953<14> × [4500265619914248493340804927735166187657870746330758472787759945345760814145195938226469231873006090049415188928931467730868036738256285908867496841844819099951709375029559880721220990395047179121013345490785193514615301443590499683396042944211894959904117150683715382580380486373155477<286>] |